ASoC: compress: Cancel delayed power down if needed

When a new stream is being opened it is necessary to cancel any delayed
power down of the audio.

[Fixed unused variable -- broonie]
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/soc-compress.c

@@ -211,19 +211,27 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 	if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
 		ret = platform->driver->compr_ops->set_params(cstream, params);
 		if (ret < 0)
-			goto out;
+			goto err;
 	}
 
 	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) {
 		ret = rtd->dai_link->compr_ops->set_params(cstream);
 		if (ret < 0)
-			goto out;
+			goto err;
 	}
 
 	snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
 				SND_SOC_DAPM_STREAM_START);
 
-out:
+	/* cancel any delayed stream shutdown that is pending */
+	rtd->pop_wait = 0;
+	mutex_unlock(&rtd->pcm_mutex);
+
+	cancel_delayed_work_sync(&rtd->delayed_work);
+
+	return ret;
+
+err:
 	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }